Home / 19,399.32-26,770.35-11,858.28

Finding the Fourth Proportional to 19,399.32, 26,770.35 and 11,858.28

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Solution

The fourth proportional to 19,399.32, 26,770.35 and 11,858.28 is: 16,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.32 : 26,770.35 = 11,858.28 : x
  2. Step 2: Convert to fraction form
    19,399.32/26,770.35 = 11,858.28/x
  3. Step 3: Cross multiply
    19,399.32x = 26,770.35 × 11,858.28
  4. Step 4: Simplify right side
    19,399.32x = 317,450,306.00
  5. Step 5: Solve for x
    x = 317,450,306.00/19,399.32
  6. Step 6: Final answer
    x = 16,363.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.